United Nations
Economic and Social Council
ECE/TRANS/WP.29/GRE/2014/28
Distr.: General
11 August 2014
Original: English
Economic Commission for Europe
Inland Transport Committee
World Forum for Harmonization of Vehicle Regulations
Working Party on Lighting and Light-Signalling
Seventy-second session
Geneva, 20–22 October 2014
Item 4 (i) (iv) of the provisional agenda
1958 Agreement - Regulations
Other business – Any other business
Proposal for Supplement 7 to the 01 series of amendments to
Regulation No. 123 (Adaptive front-lighting systems (AFS))
Submitted by the expert from the International Automotive Lighting
and Light Signalling Expert Group (GTB)*
The text reproduced below was prepared by the expert from the GTB to amend the
requirements for the mixture for the dirt test and to simplify the measurement of the
objective luminous flux of light emitting diode (LED) module(s) and correct the ultraviolet
(UV) table. The modifications to the existing text of the Regulation are marked in bold for
new or strikethrough for deleted characters.
*
GE.14-
In accordance with the programme of work of the Inland Transport Committee for 2012–2016
(ECE/TRANS/224, para. 94 and ECE/TRANS/2012/12, programme activity 02.4), the World Forum
will develop, harmonize and update Regulations in order to enhance the performance of vehicles. The
present document is submitted in conformity with that mandate.
ECE/TRANS/WP.29/GRE/2014/28
I. Proposal
Annex 4, paragraph 1.2.1., amend to read:
“1.2.1.
Preparation of the test sample
Test mixture
1.2.1.1.
For a system or parts thereof with the outside lens in glass, a mixture of water
and polluting agent to be applied to the test sample shall be composed of:
9 parts by weight of silica sand with a particle size of 0-100 micro meter
corresponding to distribution prescribed in paragraph 1.2.1.3.;
1 part by weight of vegetable carbon dust produced from (beech wood) with
a particle size of 0-100 micro meter;
0.2 parts by weight of NaCMC5, and
5 parts by weight of sodium chloride (pure at 99 per cent);
an appropriate quantity of distilled water with a conductivity of less than
1 mS/m.
1.2.1.2.
For a system or parts thereof with the outside lens in plastic material, the
mixture of water and polluting agent to be applied to the test sample shall be
composed of:
9 parts by weight of silica sand with a particle size of 0-100 micro meter
corresponding to distribution prescribed in paragraph 1.2.1.3;
1 part by weight of vegetable carbon dust produced from (beech wood) with
a particle size of 0-100 micro meter;
0.2 parts by weight of NaCMC5;
5 parts by weight of sodium chloride (pure at 99 per cent);
13 parts by weight of distilled water with a conductivity of less than 1 mS/m;
and
2 + 1 parts by weight of surface-actant. 6
Add a footnote 6, to read;
“6
The tolerance on quantity is due to the necessity of obtaining dirt
that correctly spreads out on all types of plastic lens.”
1.2.1.3.
Particle-size distribution
Article I.
Particle size (in
m) III. 0 to 5
Article
Article V.
2
5 to 10
Article II. Particle-size
distribution
in (%)
Article
IV. 12
±2
Article VI. 12 ± 3
Article VII. 10 to 20
Article VIII. 14 ± 3
Article IX. 20 to 40
Article X.
Article XI. 40 to 80
Article XII. 30 ± 3
Article XIII. 80 to 100
Article XIV. 9 ± 3
23 ± 3
ECE/TRANS/WP.29/GRE/2014/28
1.2.1.43.
The mixture must not be more than 14 days old.
1.2.1.54.
Application of the test mixture to the test sample:
The test mixture shall be uniformly applied to the entire light- emitting
surface(s) of the test sample and then left to dry. This procedure shall be
repeated until the illuminating value has dropped to 15-20 per cent of the
values measured for each following point under the conditions described in
this annex:
point Emax in driving beam, under neutral state conditions,
50V for a class C passing beam, and each specified passing beam mode.
Annex 11, paragraph 4.2., table UV, amend to read:
“Table UV
Values according to "IRPA/INIRC Guidelines on limits of exposure to ultraviolet radiation".
Wavelengths (in nanometres) chosen are representative; other values should be interpolated.

S()

S()

S()
250
0.430
305
0.060
355
0.000 16
255
0.520
310
0.015
360
0.000 13
260
0.650
315
0.003
365
0.000 11
265
0.810
320
0.001
370
0.000 09
270
1.000
325
0.000 50
375
0.000 077
275
0.960
330
0.000 41
380
0.000 064
280
0.880
335
0.000 34
385
0.000 530
0.000 053
285
0.770
340
0.000 28
390
0.000 044
290
0.640
345
0.000 24
395
0.000 036
295
0.540
350
0.000 20
400
0.000 030
300
0.300
“
Annex 11, paragraph 5.2., amend to read:
“5.2.
Three One modules of each type shall be submitted by the applicant with the
light source control gear, if applicable, and sufficient instructions.
Suitable thermal management (e.g. heat sink) may be provided, to simulate
similar thermal conditions as in the corresponding headlamp application.
Before the test the each LED module shall be aged at least for seventy-two
hours under the same conditions as in the corresponding headlamp
application.
In the case of use of an integrating sphere, the sphere shall have a minimum
diameter of one meter, and at least ten times the maximum dimension of the
LED module, whichever is the largest. The flux measurements can also be
performed by integration using a goniophotometer. The prescriptions in CIE Publication 84 - 1989, regarding the room temperature, positioning, etc., shall
be taken into consideration.
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ECE/TRANS/WP.29/GRE/2014/28
The LED module shall be burned in for approximately one hour in the closed
sphere or goniophotometer.
The flux shall be measured after stability has occurred, as explained in
paragraph 4.3.1.2. of this annex 10.
The average of the measurements of the three samples of each type of LED
module shall be deemed to be its objective luminous flux.”
II. Justification
Amendment to Annex 4, paragraph 1.2.1.
1.
The Regulations currently specify several test mixtures to simulate dirt during
testing of lamps. As there is no reason to use different kinds of test mixtures it is proposed
to amend the Regulations by introducing a uniform test mixture to be used for all the tests.
In addition, to avoid misinterpretation, the wording “beech wood” is replaced by “produced
from beech wood”.
Amendment to Annex 11, paragraph 4.2.
2.
This is a correction to the UV test table.
Amendment to Annex 11, paragraph 5.2.
3.
This proposal intends to simplify the test procedures that determine the objective
luminous flux of LED module(s). As the purpose of this test is to verify that the luminous
flux is greater than 1000 lm; it is not required to measure an absolute value, it is sufficient
to perform this measurement on one LED module instead of on three modules as currently
required.
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